package com.atguigu.gulimalltestssoclient.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.client.RestTemplate;
import org.thymeleaf.util.StringUtils;

import javax.servlet.http.HttpSession;
import java.util.ArrayList;
import java.util.List;

@Controller
public class HelloController {
    @Value("${sso.server.url}")
    String ssoServerUrl;
    /**
     * 无需登录就可以访问
     */
    @ResponseBody
    @GetMapping("hello")
    public String hello(){
        return "hello";
    }
    @GetMapping("/employees")
    public String employees(Model model, HttpSession session,
                            @RequestParam(value="token",required = false) String token){
        if(!StringUtils.isEmpty(token)){
            //去ssoserver登录成功跳回来就会带上
//               TODO 1、去ssoserver获取当前token真正的对应的用户信息
            RestTemplate restTemplate = new RestTemplate();
            ResponseEntity<String> forEntity = restTemplate.getForEntity("http://ssoserver.com:8080/userinfo?token="+token,String.class);
            String body = forEntity.getBody();
            session.setAttribute("loginUser",body);
        }
        Object loginUser = session.getAttribute("loginUser");
        if(loginUser == null){
        //没登陆,跳转到登录服务器进行登录
            return "redirect:"+ssoServerUrl+"?redirect_url=http://client1.com:8081/employees";
        }else{
            List<String> emps = new ArrayList<>();
            emps.add("张三");
            emps.add("李四");
            model.addAttribute("list",emps);
            return "list";
        }
    }
}
